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Commitments and Contingencies - Additional Information (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) item | Jun. 30, 2019 USD ($)
Commitments And Contingencies [Line Items] |  |
Number of potentially responsible parties | item | 140 |
Current And Long Term Liabilities |  |
Commitments And Contingencies [Line Items] |  |
Accrual for environmental loss contingencies payments | $ | $ 4,940 | $ 5,890

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- Definition Represents commitments and contingencies. + References No definition available. + Details
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- Definition Amount of cash outflow to settle environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q1) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585 + Details
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